Re: NRC <> Brisbane to Sydney safeworking.

["Richard Wardle" <ricdeb@netmedia.com.au>]

Eben Levy wrote in message <364FDC15.33A91C2C@ozemail.com.au>...
>
>
>David Proctor wrote:
>
>> Krel wrote in message <364eb105.6864419@news.netconnect.com.au>...
>>
>> >This happen already in Victoria. It is called Section Authority
>> >working. The train control graph is electronic; it will not allow
>> >"cornfield meets". The train controller issues an electronic authority
>> >via secure radio is the following format:-
>>
>> [...snip...]
>>
>> >On arrival at the home signal at the facing points you stop. Insert a
>> >special key into a keylock that puts the main line signal back to red,
>> >motors the points and then clears the signal for the loop.
>>
>> Why not just having trailable points like they do in Queensland - all
trains
>> in the Up direction go onto one road (loop or main, not sure which) all
>> trains in down direction go into the other? The points are set up so that
>> when a train leaves (against the points) they revert to their normal
>> position. No need for keying then.
>
>Well, then you still need some sort of keying if you have one train in the
loop
>and want another to cross it going the same way.
>
>But what everyone is forgetting is the system in use on the brisbane
corridor
>makes everytrain stop and get a lump of metal that cannot* be wrong. It
also
>means that all crew have full control of there train, I.E. not allowing it
to
>trundle trough on autopilot.
>
>
>* It has happened where the crew have removed the staff from the wrong
machine
>and taken the road.

What you have said about the crew taking the wrong staff very very rarely
occurs. There is a system that when you have a train crewed by 2 men that
they check each other all the time. That is that when the 2nd person
withdraws the staff he then hands it to the driver to check it for
correctness. If it is wrong then the error is corrected also in an electric
staff system only ONE staff can be withdrawn at any one time which means
only ONE train in the section at any one time.
>
>>
>>
>> >Does this help or confuse??
>>
>> Seems overly complicated. But then, that is the way of Australian
railways -
>> why use 5 rules when you can use 5,237.
>>
>> David "The Doctor" Proctor
>> daproc.spambait@umpires.com
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>
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>--
>Bye for now,
>
>Eben
>
>http://www.ozemail.com.au/~tkid/
>
>And one ring to rule ... err ... moderate them all!
>
>